Self-filling fountain pen



NOV 3, v H. w. msx- Tg v SELF FILLING FOUNTAIN PEN Filed Nov. 19. 1924 i l. 'IIIIIIIII` Patented Nov. 3, 1925...-

* UNITED STAT-Es` HERBERT `w. xrsn, or cmcaeo, rumors.

SEEE-FILLING roUNTAIN PEN.

Applicatlpn led November 19, 1994. Berlal No. 750,771.'

To ZZ 'whom t may concern:

-Be it known that I HERBERT W. KIsH, a citizen of the United tates, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in a Self-.Filling Fountain Pen, of which the following is a specifica tion.

My invention relates to a new and useful improvement in a fountain pen and has for its object the provision in a self lling fountain pen of a reserve reservoir for containing writing fluid such as ink or the like, which may -be used for writing purposes at the will of the user. It frequently happens that one using a fountain pen when writing, exhausts the ink or Writing fluid contained in the res-` ervoir of the fountain pen before finishing the writing which has been started, necessivoir so that the contents of the reserve res-v ervoir may not be used until communication with themain reservoir is established by the rone -usingthe en. Under ordinary conditions this woul not be done except to complete writing an article already begun, so that sufcient ink of the same color and ingredients would be provided to finish the writing as was used in beginning it.

In self filling fountain pens it is quite customary to utilize a rubber sack as a reservoir to contain the writing fluid. With the usefof my inventionto provide a reserve reservoir, where a rubber sack is used as a container of the writing fluid, it is desirable that'the sack be reenforced. This reenforcementis shown in the drawings as positioned at that'point-in the sack where the4 reserve compartment is closed from the -main reserner.

voir. However, the employment of the reenforcement may the length of the tube if desired.

It is' also an object of the invention to provide a means for locking the' device which closes the reserve com artment from communication with the mainv reservoir in locking position, so that the communication' between thereserve compartment and the .and in which, tating, in'order to finish the writing, a re- Fig. 1 is a side elevational view of a 'fountain pen .embodyingY the invention,

Fig. 2 1s a side elevational view showin the invention appliedto a fountain`v pemwit a art removed and a part in section,

, ig. 3 is a fragmentary vertical sectional View of a fountain pen embodying the -invention showing the locking device in operative position,

Fi 4 is a sectional view taken on substantially line 4-4 of Fig. 3,

Fig. 5 is a fragmentary view, in section, illustrating the method of locking the lockingw mechanism in operative position,

` ig. 6 is a fragmentary v ertical'lsectional View of a modified .form of the invention,

showing one end of the sack reenforced with.

be extended throughout its own material and having a restricted neck, i

Fig. 7 is a view similar to Fig. 6 with reenforcement embedded in the sack,

Fig. 8 is a fragmentary sectional view of a modified form.

The fountain pen is provided with a barrel 9 in which is positioned a rubber sack 10 adapted for the receptionl of writing fluid.

This rubber sack is in communication with the forwardV -portion 11 of the fountain pen, the connection being m'ade in the usual man- As shown in Fig. 2, a' pluralit of smallwires 12 are' embedded in thel sac 10, adjacent the closed end, these wires extending longitudinally of the sack. Mounted in an opening formed in the barrel 9 is a sleeve 13 having a flange 14 which is adapted to lie in engagement with the periphery of the barrel 9. blidably mounted in thesleeve 13, with a slight play, is a stem 15 having a head 16 mounted thereon. Formed in the stem 15, as shown in Fig. 5, is a notch 17 which is adapted to receive an inwardly projected tongue 18 punched from one side of the sleeve 13. Mbunted on the inner end of the stem l15 is a semispherical presser foot 19. g

The fountain pen is filled in the usual manner by means lof the presser lever 20. In filling the pen the presser foot 19 is moved to the position shown vin Fig. 2. When the tongue 18 is disengaged from the notch 17, the tube or sack 10 will move the presser foot into the position shown in Fig. 2. The sack is then filled in the usual manner by operating the presser lever 20. In filling these sacks or tubes, in fountain pens, there is generally left a slight space which is not filled with the writing fluid. Subsequently to filling the sack in this manner, the pen is raised in upright position, permittin the writing fluid contained in the sack to ow toward the closed end of the sack. The plunger 15 is then pressed inwardly so as to close a portion of the tube, adjacent its closed end, from the remainder of the tube, to provide a reserve compartment or reservoir. The slight unfilled space in the sack will prevent any of the writing fluid being forced out of thec sack when the reserve compartment is being shut oil' fromthe rest of the sack. This reserve compartment comprises a small portion of the sack, the main body Iof the sack being used for the main reservoir. When the plunger 15 is pressed inwardly the tongue 18 engages'in the notch --17 to prevent any accidental withdrawal of the presser foot 19 from engagement, in locking position, with the sack 10.

After the contents of the main reservoir have been used and it is desired to continue the use of the pen with the same kind of ink, a slight movement of the stem 15, radially ofthe sleeve 13 will disengage the tongue '18 from the notch 17 and permit the movement of the presser foot into the position shown in Fig. 2 so as to bring the two compartments into communication and permit the use of theink in the reserve compart ment for writing purposes. When the compartment 1s sealed from the mam reservolr -the presser foot.l will be in the `position shown in Fig. 4.

In Fig. 6 I have shown a modified form of the invention, in which the sack v9 has a .A portion adjacent the closed end reenforced from the same material from which the sack is made, by forming the reenforced portion of greater thickness than themain body of the sack. As shown in Fi 6 and Fig. 7 the tube may be restricte as at 21, the presser foot 19 lengaging the tube at the restricted portion. The construction is such that the tube will be provided with a neck portion, so that the walls of the tube will have less distance to be moved toward each other in order t'ovclose the reserve compartment from the rest of the tube. The restricted portion ,shown in Fig. 7 is reen- 7i forced by wires l2, which are preferably made from small pieces of copper wire, the small pieces being embedded around the sack and in alignment, longitu'dinallyextending rows. v 80 In Fig. 8 I have shown a modified form of the invention in which the tube 10 is rovided with the restricted portion 22. ivotally mounted on the barrel 9 is a lever 23 having an angularly extending portion 24, 85 carrying a narrow presser foot 25. The construction is such that when the lever 23 is lying in the position shown in Fig. 8 the reserve compartment will be closed rom communication with the main reservoir. 90 W hen the lever 23 is moved into upright position the presser foot 25 will be swung out of locking engagement with the sack 9 so as to permit communication of the reserve compartment with the rest of the sack.

Various other modifications might be\ made to carry outthe'purposes of the invention and it is intended that thesemodifications shall come within the scope of the appended claims, which are drawn to cover 10 the invention generally.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. A flexible writing fluid container adapt- 19. ed for use with fountain pens having ,reinforcin wires embedded and extending longitudinally thereof.

2. A flexible container for writin fluid adapted for use with fountain pens aving 1l. reenforcing wires embedded therein.

3. In combination with a fountain pen having a flexible fluid container, a presser foot, and means for moving said presser foot into engagement with said 'container lll for divid'in the same into a pair of noncommunicating compartments, said presser foot being movable at willto open communication between said compartments.

4. In combination with a fountain pen havl ing a flexible fluid container, presser adapted for movement into an engagement with said container for dividing the same into a pair of non-communicating compartments.

5. In combination with a `fountain pen l having a flexible fluid container a sleeve mounted on said pen; a stem projected slidl'ably through said sleeve; a presser foot with said container lfor dividing the same movement into enga ement with said coninto a pair of Anon-communicajzing comparttainer for dividing t e samel into a pair of l0 ments. s' non communicating compartments; and

6. In combination with a fountain pen haw means for engaging said stem for retaining ing a flexible iuid container a sleeve mountsaid presser foot in said engaging position.

ed on said pen; a stem projected slidably Irv testimony whereof, I have signed the through said sleeve; a presser foot mounted foregoing specification. v on the inner end of said stem adapted for v HERBERT W. KISH. 

